[xmonad] New layout for ultrawide monitors

Hi folks, I've published a new layout for ultrawide monitors. I put this together after trying several of the existing layouts that target ultrawides, but finding that none of them really worked quite the way I wanted. The repo is here, https://github.com/milessabin/ThreeColumnStable There's a small animated demo which is hopefully worth a few thousand words. Any and all feedback would be very much appreciated, including on Haskell style (I'm a functional programmer but not a Haskeller). Cheers, Miles -- Miles Sabin https://bsky.app/profile/milessabin.com https://types.pl/@milessabin https://milessabin.com/blog